html, body {
  margin: 0;
  padding: 0;
}
canvas {
  display: block;
  border-top: 33px solid rgb(255,0,0);

}

.reproduccion{
  width: 100%;
  font-size: 63px;
  background-color: white;
  color: black;
  padding: 3%;
  border: 2px solid red;
}